When buying or selling a home, one of the most confusing parts of the closing disclosure is the "tax proration." This calculator helps you determine exactly how much the buyer or seller owes based on the closing date and the local tax cycle.
Understanding the Proration of Taxes
Property taxes are rarely paid on the exact day a home changes hands. Because property taxes cover a specific "tax year" or "fiscal year," and the closing date can fall anywhere within that window, the buyer and seller must split the bill proportionally. This process is known as tax proration.
How the Calculation Works
The goal of our proration of taxes calculator is to ensure that the seller pays for every day they owned the home during the current tax cycle, and the buyer pays for every day they will own it. The calculation follows these general steps:
- Determine the Tax Year: Most jurisdictions use a calendar year (Jan 1 – Dec 31), but some use a fiscal year (e.g., July 1 – June 30).
- Count the Days: We calculate the total number of days in that specific tax year (365 or 366).
- Identify the Closing Date: Usually, the day of closing belongs to the buyer, meaning the seller is responsible for taxes up to the day before closing.
- Calculate Daily Rate: Total Annual Tax / Total Days in Year.
- Split the Cost: Multiply the daily rate by the number of days the seller owned the property.
Arrears vs. Advance Payments
This is where most people get tripped up. Depending on where you live, taxes are either paid in "Arrears" or in "Advance."
- Paid in Arrears: This means the bill you pay today covers the past year. If you sell your home, you haven't paid the taxes for the time you lived there yet. Therefore, the Seller gives a credit to the Buyer at closing.
- Paid in Advance: This means the bill you paid covers the upcoming year. If you sell your home halfway through the year, you've already pre-paid for time you won't live there. Therefore, the Buyer gives a credit to the Seller at closing.
Why Precision Matters
On a $10,000 annual tax bill, a single day is worth roughly $27.40. If a closing is delayed by a week and the proration isn't updated, someone could be out nearly $200. While title companies and escrow officers handle these calculations, using a proration of taxes calculator allows you to verify the numbers on your Closing Disclosure (CD) or Settlement Statement.
Common Questions
Who pays the day of closing?
In most states, the buyer is considered the owner on the day of closing. However, local customs vary. Some agreements specify that the seller pays for the closing day. Our calculator assumes the buyer takes ownership starting on the closing date.
What if it's a leap year?
Professional tax prorations use the actual number of days in the specific year. If the tax period includes February 29th, the calculation should be based on 366 days to remain accurate.